Linux usr
/usr
All programs (according to the loosely adhered toFilesystems Hierarchy Standard) are installed to /usr. Conky and Gnome are exeptions.
All files in /usr are written by a Linux Distrobution. Locally installed programs go into /usr/local This makes it possible to update the system to a new version, or a completely different distrobution without having to install all programs again.(really?)
/usr/X11R6
The X Window System. All Files.
/usr/bin /usr/local/bin
Almost all user commands/programs.
/usr/sbin
System Binaries not needed on root. ex: most server programs.
Man pages, Gnu info Docs, misc other documentation files
/usr/include OR /usr/lib
Header files for C programming language.
/usr/group
Unchanging data files for programs.
/usr/local
Locally installed software/files. Distrobutions generally do not intsall anything in here. Reserved for the use of local administrator so no updates or distro changes will overwrite software installed locally.
